Among the many complex ions of cobalt are Co(NH3)63+(aq) + 3 en(aq) ⇌ Co(en)33+(aq) + 6 NH3(aq) where "en" stands for ethylenediamine, H2NCH2CH2NH2. Six Co―N bonds are broken, and six Co―N bonds are formed in this reaction, so ΔH o rxn ≈ 0; yet K > 1. What are the signs of ΔS o and ΔG o ? ΔS o < 0 ΔS o = 0 ΔS o > 0 ΔG o < 0 ΔG o = 0 ΔG o > 0 What drives the reaction? Free energy is positive. Enthapy is ≈ 0. a decrease in entropy an increase in entropy

Which is a characteristic of mixtures?

Darla claims that the first periodic table developed by mendeleev was not completely accurate, so it is not useful at all. harmony argues that it establish the periodic table we use today, making it more credible. who is correct and why? darla is correct, because a model that has any mistakes should be thrown out. darla is correct, because a good model would not need to change. harmony is correct, because mendeleev’s model had all of the information correct in the first version. harmony is correct, because mendeleev’s model made predictions that came true.

The characteristic of two different types of reactions are shown below. reaction a: electrons are gained by the atoms of an element. reaction b: protons are lost by the atom of and element. which statement is true about the atoms of the elements that participate in the two reactions? a: their identity changes in both reaction a and b. b: their identity changes in reaction a but not b. c: their identity changes in reaction b but not a. d: their identity remains the same.